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#1
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Bosch - Bremi - Eldor Ignition coils for N62
My X5 starts and runs fine.....no issues whatsoever. I'm about to order ignition coils if whether changing these might improve my fuel economy. What do you guys recommend and experience with these brands? Bosch vs Bremi vs Eldor? Currently, still on original Bosch 0221504100....@105k miles Monitored engine roughness via INPA and all reads the same and seems fine. I've checked Realoem and found a NEWER version Eldor 12138657273. |
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#2
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If a motor isn't skipping then ignition fixes are not likely to help fuel economy much.
Dirty air filter, dirty fuel filter, sluggish mass air flow meter, tired o2 sensors, clogged cats and such are the areas that usually effect gas mileage.
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Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
#3
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That's what I assume too.
I do routine maintenance on my X5 almost every 5k. I've replaced all filters (air - fuel - oil) 02 sensors but NOT cats converters? I'm constantly monitoring the engine via INPA and cannot see any anomalies on anything. Experimented with Premium fuel (98 RON) from different service stations as well. And for giggles......tried 91 and 95 RON! .............and made no or little whatsoever........except lost a bit of torque down low. |
#4
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What gas mileage are you getting or liter per whatever?
X5's are not really mpg machines. My X5 gets 16.something most of the time according to the lie-o-meter and sometimes it makes it into the 17's. This is mostly in town and lots of idling. On the highway I get 26 or so with my 3.0 X5. I use the cruise all the time when I can.
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Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
#5
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I get 13.5 mpg consistently with my 4.6iS with mainly Bay Area commute traffic. Lots of slow freeway time.
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A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams 2003 X5 4.6is Estoril Blue 2005 Infiniti G35X 1972 Datsun 240Z 1991 Isuzu Impulse XS Sold 1972 Fiat 850 Spyder Donated 1972 Datsun 240Z Sold 1972 Datsun 510 Sold |
#6
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Averaging between 8 to 9.5 km/l at combined city/freeway driving this year.
Roughly....18 to 21 mpg. I remembered doing 11 to 12 km/l mostly speeds hovering 80-100 kmh. Tyres have always been Latitude Diamaris. It's a big difference from 11 km/l to 8 km/l !! No change in driving style... |
#7
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Ok here is a fun one to try you said constantly monitoring thru the obd port. Try a tanks worth without monitoring any or at least a short term test by resting the mileage meter and running without monitoring anything for a drive somewhere you used to. Longer time the better but you may notice a difference pretty fast.
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Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
#8
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Getting mostly 16.4 MPG in my 4.4i sport. Changed out spark plugs and saw an improvement in idling even though the old plugs looked fine. Worth a shot.
Here's a refresher vid I recorded of the process: https://www.youtube.com/watch?v=_OgFBDO92KI |
#9
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16.4 mpg ....that's were I want to be.
Cool video! |
#10
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Quote:
Either Bosch or Bremi will be fine. Have you checked for codes? Not that unusual that a coil starts to fail are 100,000 miles or more but if there is no miss, especially when the engine is first started they should be OK. Check to make sure engine goes from open to closed loop.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
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